[FFmpeg-devel] [PATCH] fftools/ffmpeg_mux_init: avoid invalid reads in forced keyframe parsing

Anton Khirnov anton at khirnov.net
Fri Mar 10 15:45:47 EET 2023


Fixes #10243
---
 fftools/ffmpeg_mux_init.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fftools/ffmpeg_mux_init.c b/fftools/ffmpeg_mux_init.c
index b3cc502fdd..09d24ba8e5 100644
--- a/fftools/ffmpeg_mux_init.c
+++ b/fftools/ffmpeg_mux_init.c
@@ -2063,7 +2063,7 @@ static void parse_forced_key_frames(KeyframeForceCtx *kf, const Muxer *mux,
         if (next)
             *next++ = 0;
 
-        if (!memcmp(p, "chapters", 8)) {
+        if (strstr(p, "chapters") == p) {
             AVChapter * const *ch = mux->fc->chapters;
             unsigned int    nb_ch = mux->fc->nb_chapters;
             int j;
-- 
2.39.1



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